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Merrill JE, Kono DH, Clayton J, Ando DG, Hinton DR, Hofman FM.Merrill JE, et al. Among authors: hofman fm.Proc Natl Acad Sci U S A. 1992 Jan 15;89(2):574-8. doi: 10.1073/pnas.89.2.574.Proc Natl Acad Sci U S A. 1992.PMID: 1370583Free PMC article.